Comparison of lower concentrations of lidocaine to suppress bucking before extubation during recovery of general anesthesia.
Thirty females, aged 25-50 years old, scheduled for abdominal total hysterectomy were randomly divided to two groups. For patients in group I, 2 mL 1% lidocaine solution was injected through the catheter on the tube to desensitize the trachea while surgeon started to close the peritoneum. In group II, 2 mL 2% lidocaine was used. The peak cuff pressures generated in the awakening group I patients were 49.0 +/- 2.5 cmH2 O (mean +/- SD) which shows greater than that in group II (27.9 +/- 7.2 cmH2 O), p less than 0.01. Bucking before awakening was also evaluated clinically. One hundred % (15/15) in group I patients bucked compared with 13.3% (2/15) in group II patients (p less than 0.01). Gag reflex was preserved in all patients and none suffered from aspiration postoperatively. Intratracheal administration of two mL 2% lidocaine through the catheter of modified endotracheal tube showed significant effect for suppressing bucking during recovery of general anesthesia.
Wu
T J
TJ
Department of Anesthesiology, National Taiwan University Hospital.
Liu
C C
CC
Lin
S Y
SY
Jiang
C J
CJ
Chen
C L
CL
Hou
W Y
WY
Liang
H C
HC
Lee
T S
TS
Huang
C H
CH
Hong
P Y
PY
D000328:Adult; D000768:Anesthesia, General; D003371:Cough / Q000517:prevention & control*; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal; D008012:Lidocaine / Q000494:pharmacology*; D008875:Middle Aged; D012018:Reflex
D008012:Lidocaine